MDD025A-N-100-N2K-040MC0
The MDD025A-N-100-N2K-040MC0 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it converts drive commands into rotary motion for light-duty positioning axes, pick-and-place heads, or compact spindles in automation lines. Its compact format suits small servo axes where low moving mass supports fast response. The housing also fits installations with limited mechanical space, and the A length keeps the overall dimensions short. This layout is useful in machines that place the motor close to tooling, transfer arms, or other components that limit available clearance around the axis.
The rotor is balanced to the standard grade, and the motor reaches a nominal speed of 10000 rpm, allowing rapid cycle times in equipment that requires fast starts and stops. At standstill, it delivers a continuous torque of 0.33 Nm, which supports energized holding under light static load. A centering diameter of 40 mm aligns the flange precisely to mounting fixtures and helps limit radial runout. Power and feedback conductors exit on Side A, which helps simplify cable routing in narrow cabinets, and connection is made through a connecting cable with a coupling unit. The shaft uses a keyway profile and a single-ended form without a side B extension, so couplings or pulleys mount only on the drive side. The motor is supplied without a shaft seal, which makes it suitable for clean, dry environments. This arrangement keeps the non-drive end clear for tight machine layouts.
An integrated absolute encoder reports multi-turn position data, and the resolver channel provides additional resolver feedback for drives that use analog angle information at high update rates. That combination supports closed-loop motion on compact axes that need immediate position information and stable speed control. The motor is delivered without a blocking brake, so vertical or overhauling loads must be secured by external mechanics or by the drive's holding torque. Size code 025 corresponds to the smallest stator diameter in the series, which helps lower inertia and supports high acceleration profiles while keeping mass low for gantry or robot wrist installations.
